Lorentz Globe (partially successful)
thingiverse
An attempt to make a Lorentz globe a'la https://youtu.be/Rh0pYtQG5wI when one of my sons got interested in it. Was partially successful. Was also my first time creating a FreeCAD Macro to carve out the guide channels along the right curve. Includes the Lorentz plate and a larger scale version of the plate broken into 4 sections that will each fit onto an Ultimaker 2Go build plate. Proceed with caution and/or curiosity. I'm uploading these things without having looked at the state of them in a while.
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